The heavy silver vessels 18.2.13-18.2.17 are in created in a decorative style widespread in the Greek world, and can be dated to the fourth century BC. They. are said to have been found together in the Egyptian Delta. Several of the vessels have small Demotic designations scored into the rim recording the weight of the silver, which correlated with the vessel's value. The larger weight unit was a deben (about 91 grams at this time) and this was divided into 10 kites..Only 18.2.16 has an inscription sufficiently preserved to read its full ancient weight as 4 deben and 6 kites, which should be about 400 grams, although the vessel only weighs 290 grams.